Mossberg 940 JM Pro 12 Gauge 24" Vent Rib Semi-Auto Shotgun

The Mossberg 940 JM Pro is a 12 gauge semi-auto shotgun built for competitive and practical shooting. It is designed around a 24-inch vent rib barrel and a black synthetic stock with an adjustable length of pull, allowing the fit to be tailored to different shooters.

The shotgun has a matte blued finish, a front fiber optic sight for quick alignment, and a 2-position thumb safety. An oversized charging handle and an enlarged, beveled loading port are included to support faster cycling and reloads. The receiver is optic-ready for compatible red dot sights such as the Shield RMSc.

The 12 gauge chamber accepts 3-inch shells, with a magazine capacity of 4 rounds plus one in the chamber. The package includes a Briley Extended Choke Set in the IC and C Mod constrictions. Overall length is listed at 44.75 to 45.5 inches, depending on the source.

• Action: Semi-Auto
• Gauge/Chamber: 12 Gauge, 3-inch
• Barrel Length: 24-inch vent rib
• Capacity: 4 + 1 rounds
• Weight: 7.25 lbs (listing varies, 7.75 lbs also cited)
• Stock: Black synthetic, adjustable length of pull
• Sights: Front fiber optic (HiViz CompSight), optic-ready